Only ignore warning on gcc 8

1 files changed, 4 insertions, 0 deletions

diff --git a/fnet/src/vespa/fnet/packetqueue.cpp b/fnet/src/vespa/fnet/packetqueue.cpp
index e80f849f3ed..e1efdfed357 100644
--- a/fnet/src/vespa/fnet/packetqueue.cpp
+++ b/fnet/src/vespa/fnet/packetqueue.cpp
@@ -29,7 +29,9 @@ FNET_PacketQueue_NoLock::ExpandBuf(uint32_t needentries)
         uint32_t rLen = (_in_pos - _out_pos);
 //TODO Rewrite to pure C++
 #pragma GCC diagnostic push
+#if __GNUC__ >= 8
 #pragma GCC diagnostic ignored "-Wclass-memaccess"
+#endif
         memcpy(newbuf + rOfs, _buf + rOfs, rLen * sizeof(_QElem));
 #pragma GCC diagnostic pop
     } else {                      // WRAPPED
@@ -40,7 +42,9 @@ FNET_PacketQueue_NoLock::ExpandBuf(uint32_t needentries)
         uint32_t r1Len = _in_pos;
         uint32_t r2Len = (oldsize - _out_pos);
 #pragma GCC diagnostic push
+#if __GNUC__ >= 8
 #pragma GCC diagnostic ignored "-Wclass-memaccess"
+#endif
         memcpy(newbuf, _buf, r1Len * sizeof(_QElem));
         memcpy(newbuf + _bufsize - r2Len, _buf + oldsize - r2Len, r2Len * sizeof(_QElem));
 #pragma GCC diagnostic pop